fixed ca.cfg link in Installing_CA.adoc #5549

Job	Run time
Waiting for build / Waiting For Build	8m 43s
Update Version / Test	15s
PKICertImport / Test	1m 30s
PKI NSS CLI with ECC / Test	57s
PKI NSS CLI with Extensions / Test	41s
PKI NSS CLI with AES / Test	36s
PKI NSS CLI with HSM / Test	1m 7s
PKI NSS CLI with RSA / Test	48s
PKI PKCS7 CLI / Test	53s
PKI PKCS12 CLI / Test	50s
PKI PKCS11 CLI / Test	1m 13s
rpminspect / Test	6m 7s
	23m 40s

Provide feedback